Veris Industries CW2LA2A Sensor

The Veris Industries CW2LA2A is a high-performance, wall-mounted multi-sensor platform designed for precise room pressure and air quality monitoring in commercial BAS environments. As a veteran-grade HVAC air quality sensor, this unit integrates CO2, humidity, and temperature sensing into a single matte white housing, significantly reducing installation time and footprint on site. The core NDIR CO2 sensor utilizes non-dispersive infrared technology for diffusion sampling, providing ±30 ppm accuracy and field-selectable ranges of 0-2000 or 0-5000 ppm. This ensures full compliance with ASHRAE 62.1 standards for demand-controlled ventilation in schools, offices, and retail spaces.

For moisture control, the CW2LA2A features a 2% accuracy humidity sensor utilizing a thin-film capacitive element that is field-replaceable, allowing for easy maintenance without pulling the entire base. The integrated temperature transmitter provides a typical accuracy of ±0.2 °C, making it a reliable BAS-compatible wall sensor for various controller brands. The segmented LCD screen with 3 buttons allows for immediate local IAQ monitoring and setpoint adjustments. With selectable 4-20mA, 0-5V, or 0-10V analog outputs, this multi-parameter environmental sensor offers the flexibility needed for sophisticated building automation logic and energy-efficient ventilation strategies.

• Multi-Sensor Integration: Combines carbon dioxide, relative humidity, and temperature sensing in one unit to lower field labor and wiring costs.
• Enhanced Precision: Features ±2% RH accuracy and a high-retention NDIR element for stable, long-term CO2 measurement performance.
• Field Flexibility: DIP-switch selectable analog outputs (voltage or current) ensure compatibility with almost any building management system.
• User-Friendly Interface: The clear LCD provides real-time data visualization and simplifies local calibration and setpoint overrides.
• Ease of Service: Snap-on covers with a security screw and a replaceable humidity element streamline HVACR sensor maintenance.

How do I calibrate the CO2 sensor?
The unit supports both automatic baseline calibration (ABC) and a manual 400 ppm baseline calibration via a secondary pushbutton on the board, critical for maintaining accuracy in 24/7 occupied spaces.

Is the humidity element replaceable if it fails?
Yes, the CW2LA2A uses a modular thin-film capacitive sensor. You can swap out the RH element for a new 1% or 2% NIST-calibrated module without replacing the entire transmitter.

What wiring is required for this sensor?
This transmitter utilizes screw terminals compatible with 18-24 AWG wire and requires a Class 2 power supply providing 24 VAC or 20 to 30 VDC.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.